Improvement in flour-sifters



D; W. MARVIN. Flour-Sifters.

Patented May 26,1874.

DANIEL W. MARVIN, OF SYRACUSE, NE YORK.

IMPROVEMENT IN FLUR-SEFTERS.

Specification forming part of Letters Patent No. 15 L232, dated May 26, 1874; application filed February 17, 1874. i

To all whom it may concern Be it known that I, DANIEL W. MARVIN, of Syracuse, in the county of Onondaga and State of New York, have invented a new and usefulImprovement in a FlourSat'e and Sifter, of which the following is a specification:

My invention relates to a combined storage bin and sitter in which flour is kept and sifted as required for use and my said invention consists of a sieve hinged to be opened downward from the bottom of the bin, in combination with the agitator suspended by a collar, whereby the agitator is maintained in position within the funnel bottom band of the bin when the sieve is opened and turned down to free it of foreign matter, making in effect a hinged sieve separate from and independent of the agitator which rests upon said sieve, and by which the latter can be opened and closed without moving the agitator with the sieve.

In the accompanying drawings, Figure 1 represents a vertical section of a flour bin and sitter embracing my invention, and Fig. 2 a horizontal sect-ion of the same.

The bin A has a capacity for holding fifty or more pounds ofiiour, with a semi-cylindrical or horizontal flat sieve, B, open at the top, and forming, in connection with the inclined sides a, the bottom of the bin. A horizontal agitator, .3, is arranged to be revolved within or upon the open sieve by a crank-handle, D, on a perpendicular shaft, E. The perpendicular shaft E is attached to the agitator U by a loose joint, b, so as to allow the agitator G to automatically accommodate itself to the suriiace of the sieve, upon which it rests, whether the shaft is perpendicular thereto or otherwise, when rotated. The axis of the per 'iendieular shaft is in the cover of the bin, and in thc.een ter of the wheel-agitator G resting in the sieve. The agitator rotates within the hoop c of the sieve, and is held in position by said hoop.

The sieve B is hinged at one side to the funnel-bottom a, for the purpose of allowing it to be dumped, and it is secured to its closed position by a hook or hooks, (l, at its free side. in unfastening this hook the sieve will swing down and back upon its hinges against the wall or bottom f, and empty itself of all matter which may collect thereon. In this dumping action the agitator remains intact, being suspended by a collar, 0, on its upper bearing, as the sieve is opened and closed below it for the purpose stator A drawer, F, about the size of a sixquart pan, to receive the sifted flour, is placed in the bottom of the box beneath the sieve, and the cover G of the bin is locked, so that the tlour will be safe from loss, dirt, or vermin. The turning of the agitator U sifts the flour, and when the drawer is filled it may be removed for use, thus combining with a flOllPblll a sitter and receiving and measuring pan, and rendering it very convenient for use. When the agitator is used with a horizontal axis it is operated at the side by a crank but as shown it is a skeleton ring with arms g, open spaces 71 and an annular rim, 6, with a vertical iiange,j, iitt-ing within the hoop c, which serves as the guide and rc tainer for the agitator in position upon the sieve, the flat surface of theonc moving upon the flat surfa c of the other.

1 claim- The sieve B, hinged to be opened downward from the bottom of the bin A, in combination with the agitator (l, sus ended by the collar 6, to maintain the agitator in position within the band 0, when the sieve is opened and turned down, as shown and described.

DANIEL YV; MARVIN. 

